Chapter 3: Installation | 13 |
Instrument |
|
|
|
|
| 55 mm | 70 mm |
|
| (2.2 in) | (2.8 in) |
ST40 |
|
|
|
126 mm (5.0 in) |
| 30 mm (1.2 in) |
|
|
| minimum cable clearance | |
| 21 mm | 17 mm |
|
Instrument dimensions | (0.8 in) | (0.67 in) | |
CAUTION:
The presence of moisture at the rear of the instrument could cause damage either by entering the instrument through the breathing hole or by coming into contact with the electrical connectors.
Each instrument must be positioned where:
•It is easily read by the helmsman or navigator
•It is protected against physical damage
•It is at least 230 mm (9 in) from a compass
•There is reasonable rear access for installation and servicing
•The rear of the instrument is protected from water.
3.2Procedures
Adapt these procedures as appropriate, to suit your individual requirement.
CAUTION:
Where it is necessary to cut holes (e.g. for cable routing and instrument mounting), ensure that these will not cause a hazard by weakening critical parts of the vessel’s structure. If in doubt, seek advice from a reputable boat builder.
Fitting transducer
Instructions for installing and maintaining the speed transducer are packed with it. Before attempting to install the transducer, read these instructions and the Site requirements for transducers described in this Chapter.